A melt processable poly(ester-amide) which is capable of forming an anisotropic melt phase is provided. The poly(ester-amide) of the present invention consists essentially of the recurring units (a) 6-oxy-2-naphthoyl moiety, (b) aryl dicarboxyl moiety or trans-1,4-dicarboxycyclohexane moiety, (c) an aromatic moiety capable of forming an amide linkage in the polymer and (d) optionally, dioxyaryl moiety in the proportions indicated. Preferably, the aromatic moiety capable of forming an amide linkage is p-aminophenol or p-phenylene-diamine. The resulting poly(ester-amide) exhibits a melting temperature below 400°C., preferably below 350°C. The poly(ester-amide) of the present invention is preferably formed by a melt polymerisation technique.
本发明提供了一种能够形成各向异性熔相的可熔融加工聚(酯-酰胺)。本发明的聚(酯-酰胺)主要由以下递归单元组成:(a) 6-氧-2-
萘甲酰分子;(b) 芳基二羧基分子或反式-1,4-二羧基
环己烷分子;(c) 能在聚合物中形成酰胺键的芳基分子;(d) 可选的二氧基芳基分子,其比例如图所示。能形成酰胺键的芳香基团最好是
对氨基苯酚或
对苯二胺。所得聚酯酰胺的熔点低于 400°C,最好低于 350°C。本发明的聚(酯-酰胺)最好通过熔融聚合技术形成。